33121110030 has 64 divisors (see below), whose sum is σ = 84335904000. Its totient is φ = 8296026624.

The previous prime is 33121109977. The next prime is 33121110053. The reversal of 33121110030 is 3001112133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 33121109991 and 33121110009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189417 + ... + 319563.

It is an arithmetic number, because the mean of its divisors is an integer number (1317748500).

Almost surely, 2^33121110030 is an apocalyptic number.

33121110030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33121110030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42167952000).

33121110030 is an abundant number, since it is smaller than the sum of its proper divisors (51214793970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33121110030 is a wasteful number, since it uses less digits than its factorization.

33121110030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130673.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 33121110030 its reverse (3001112133), we get a palindrome (36122222163).

The spelling of 33121110030 in words is "thirty-three billion, one hundred twenty-one million, one hundred ten thousand, thirty".